javaFX：與單選按鈕的列表視圖

Question

我有一個列表項目，其中應包含RadioButton與列表項目。

ListView是一個可觀察的ArrayList與數據我想添加單選按鈕與列表視圖中的每個項目。

Answer 1

創建自定義ListCell並將ListCell的圖形設置爲RadioButton。如果需要，您可以在updateItem()內添加更多功能。

輸出

完整的例子

import javafx.application.Application; 
import javafx.collections.FXCollections; 
import javafx.collections.ObservableList; 
import javafx.scene.Scene; 
import javafx.scene.control.ListCell; 
import javafx.scene.control.ListView; 
import javafx.scene.control.RadioButton; 
import javafx.scene.control.ToggleGroup; 
import javafx.scene.layout.StackPane; 
import javafx.stage.Stage; 

public class RadioButtonListView extends Application { 

    public static final ObservableList names = 
      FXCollections.observableArrayList(); 
    private ToggleGroup group = new ToggleGroup(); 

    @Override 
    public void start(Stage primaryStage) { 
     primaryStage.setTitle("List View Sample"); 

     final ListView listView = new ListView(); 
     listView.setPrefSize(200, 250); 
     listView.setEditable(true); 

     names.addAll(
       "Adam", "Alex", "Alfred", "Albert", 
       "Brenda", "Connie", "Derek", "Donny", 
       "Lynne", "Myrtle", "Rose", "Rudolph", 
       "Tony", "Trudy", "Williams", "Zach" 
     ); 

     listView.setItems(names); 
     listView.setCellFactory(param -> new RadioListCell()); 

     StackPane root = new StackPane(); 
     root.getChildren().add(listView); 
     primaryStage.setScene(new Scene(root, 200, 250)); 
     primaryStage.show(); 
    } 

    public static void main(String[] args) { 
     launch(args); 
    } 

    private class RadioListCell extends ListCell<String> { 
     @Override 
     public void updateItem(String obj, boolean empty) { 
      super.updateItem(obj, empty); 
      if (empty) { 
       setText(null); 
       setGraphic(null); 
      } else { 
       RadioButton radioButton = new RadioButton(obj); 
       radioButton.setToggleGroup(group); 
       // Add Listeners if any 
       setGraphic(radioButton); 
      } 
     } 
    } 
}